Home / 808,932.40-1,212,815.40-454,055.20

Finding the Fourth Proportional to 808,932.40, 1,212,815.40 and 454,055.20

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Solution

The fourth proportional to 808,932.40, 1,212,815.40 and 454,055.20 is: 680,755.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,932.40 : 1,212,815.40 = 454,055.20 : x
  2. Step 2: Convert to fraction form
    808,932.40/1,212,815.40 = 454,055.20/x
  3. Step 3: Cross multiply
    808,932.40x = 1,212,815.40 × 454,055.20
  4. Step 4: Simplify right side
    808,932.40x = 550,685,139,010.08
  5. Step 5: Solve for x
    x = 550,685,139,010.08/808,932.40
  6. Step 6: Final answer
    x = 680,755.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.